Resting membrane potential is maintained by

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(C) The resting membrane potential is the electrical potential difference across the plasma membrane of a resting neuron. It is primarily maintained b

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Ion pumps

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(C) The resting membrane potential is the electrical potential difference across the plasma membrane of a resting neuron. It is primarily maintained by the active transport of ions via the $Na^+-K^+$ pump (an ion pump). This pump actively transports $3$ $Na^+$ ions out of the cell and $2$ $K^+$ ions into the cell,consuming $ATP$ in the process. Additionally,the differential permeability of the membrane to $K^+$ and $Na^+$ ions contributes to this potential.

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